Hey Folks, I know this is taboo but we have a long running highly availble app that is being affected by the garbage collector. In .NET 1.1 there were issues because of the aggressive GC and under 2.0 it appears much worse (i.e. the garbage collector is even more aggressive). We have no...more >>

Anyone having good plan or refrence for monitoring dot net web app for performance, network usage etc. Or best approach how to to the same ? ...more >>

Running into a weird situation wrt using ACT while stress testing web service. The Web service disallows anonymous access & the ACT script is setup to use domain account for the users. When the test is run with 1 connection, authentication requests are failing on every 3rd attempt. Not sure wh...more >>

I'm trying to use the VSTS Profiler on a fairly large and complex .NET 2.0 application. In the past, I've always used the Compuware tools (especially the Community Edition of their profiler) and am in general quite familure with application tuning in .Net. The application in question is a W...more >>

Let's say I have a dictionary where all the values are strings. Does anyone know if it is faster to say: dim s as string = directcast(_dictionary(key), string) or dim s as string = _dictionary(key).ToString() One of the nice things about using .ToString on an object reference is when ...more >>

Hi, Kindly let me know , how to monitor the performance of .Net application and please suggest some tuning recommentation for the same. Kindly answer for the following questions too.. 1.How to find out the bottle necks using perfmon? 2.How to find out response time using perfmon? Thank...more >>

Hi everyone, I have observed that the ngen process appears in the list of processes in taskmgr while .net framework 1.1 gets installed. This process consumes 0-50% of cpu and 0-20K of RAM. I would like to know if this process can be a cause of slowing down performance of a high speed applic...more >>

Hi, We are currently in the process of creating a dedicated test environment and were wondering if it would be a good idea to place the test tools on a seperate server from the on that the test application (asp.net) will be running on? Example Machine 1 - ASP.NET - SQL-SERVER ...more >>

I know that managed c++ is faster than c# because the ilcode of a mc++ application is pre optimized. Would it then be possible to decompile a c# assembly as mc++ code and then recompile it with a managed c++ compiler, gaining more performance? Is there already a tool which uses a similar appr...more >>

I have a class that implements IDisposable but does not need a Finalizer - thus, I haven't implemented one. I'm using the "typical" Dispose pattern as described on http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpgenref/html/cpconFinalizeDispose.asp. However, it isn't clea...more >>

For cleanup of COM objects that are declared local to a function on the stack, is it necessary to call Marshal.ReleaseComObject() and set the local stack variable to null to remove all rooted references? TIA -- 2b || !2b...more >>

Hi, I need help on the usage of application variables... Can I populate application variables through my console application and use them in my web application.... Are application variables specific to web solutions only.. can anyone provide more info on this?...more >>

I read on some message board that i can't find anymore saying that the Large Object Heap is compacted in Framework 1.1 or 2.0. Is this true? I can't seem to find any ms documentation that said this was fixed. Is large object heap fragmentation still going to be a problem in Framework 2.0? ...more >>

Hi Group I was considering using a Generic Dictionary<> as a value container inside my business objects, for the reason of keeping track of fields changed or added and so on. - But how expensive is it to instantiate/use Generic Dictionaries in great numbers (let's just say 100000's ), in t...more >>

I'm getting an error when calling Web service which takes 2 min to complete the process. System.Net.WebException: The underlying connection was closed: The request was canceled. at System.Web.Services.Protocols.WebClientProtocol.GetWebResponse(WebRequest request) at System.W...more >>

I want to count the times my webservice is called with a PerformanceCounter. The account ASPNET doesn't have sufficient privileges to create the counter if it is missing so I create the counter from my account (which has local admin privs) and then try to instantiate the counter. That is I e...more >>

I am trying to get various information from my servers using a simple .net app, but one of my counters is not reporting any value. The rest work fine. I am having some difficulty understanding why this is not working. Has anyone experienced this issue before? This code is returning n...more >>

I have Windows App that is calling several web services. Sometimes, when large amounts of data are transfered back and forth between the windows client and the web services, I'm getting alot of memory fragmentation caused by Object[] containing RuntimeMethodInfo 0:000> !dl Going to dump the ...more >>

Hi, Hopefully someone can explain the following. I'm using .NET 2.0 RTM. I'm doing performance analysis on a medium size app that was running quite slow after a certain period. The app has a control front end, standard WinForms exe and 15 libraries that are the engine of the product. The...more >>

I am trying to profile a DLL I wrote. So I set up my performance to profile it, using a test EXE I also wrote. The results only list Top Inclusive Samples Functions mscorwks.dll (99.464%) mscoree.dll (94.128%) CLRStubOrUnknownAddress (92.744) Top Exclusive Samples Functions mscorwks....more >>

Hello. Is it a good practice to use the MinWorkingSet and MaxWorkingSet of the Process class? If so, what are the recommended values for these properties? (If not, what other measures can be taken to reduce the amount of memory ..NET applications use?) Thanks....more >>

Hi, In my application I have text(flat) file as input and I have to generate an XML file. The maximum input text file size can be 900MB and gererated xml may result 2+ GB. Based on the first column value from the text file, the row will be moved to any of those 23 DataTable which are cr...more >>

I know this question has been asked many times, but Iv'e heared many answers for this question, so I don't know what to believe. How much memory does a reference type occupies in the manged heap? Some say 4 bytes only (for the virtual table, or Type instance reference) and some say 8 bytes (vt...more >>

I am attempting to load images into memory before i display them on screen to improve the performance. I was originally doing this using the System.Drawing.Image.FromFile/FromStream method, but i found that the time taken to do this quite high. By means of a test i attempted to load and di...more >>

hi, i've crated a custom control that allows user to draw selection rectangle over a bitmap. the selection rectangle is semi transparent and also implements cool "Marching Ants" feature :). the marching ants are moved by a timer set to interval of 100. the problem is the performance hit i g...more >>

Hi Guys, I have a question,what is the best way to preserve dataset in web application: Cache object,Session or Application state. >From perfomance,scalability point of view? Any ideas? Thanks, Marina ...more >>